학술논문

Can subretinal microphotodiodes successfully replace degenerated photoreceptors?
Document Type
article
Source
Vision Research. 39(15)
Subject
Eye Disease and Disorders of Vision
Rehabilitation
Neurosciences
Bioengineering
Assistive Technology
Eye
Animals
Biocompatible Materials
Blindness
Electronics
Medical
Electroretinography
In Vitro Techniques
Light
Miniaturization
Prostheses and Implants
Rats
Retina
Retinal Degeneration
Semiconductors
Time Factors
visual prosthesis
subretinal implant
subretinal microphotodiodes
photoreceptor replacement
retinal degeneration
Medical and Health Sciences
Psychology and Cognitive Sciences
Experimental Psychology
Language
Abstract
The idea of implanting microphotodiode arrays as visual prostheses has aroused controversy on its feasibility from the moment it appeared in print. We now present results which basically support the concept of replacing damaged photoreceptors with subretinally implanted stimulation devices. Network activity in degenerated rat retinae could be modulated through local electrical stimulation in vitro. We also investigated the long term stability and biocompatibility of the subretinal implants and their impact on retinal physiology in rats. Ganzfeld electroretinograms and histology showed no significant side effect of subretinal implants on retinal function or the architecture of the inner retina.